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This blog is full of myobservations and experiences about thewonders in the Nature,Science andMedicine. Enjoy those wonders and share your compliments! Click on OlderPosts tab found lower down to view more pages of the blog.

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Thursday, February 26, 2009

The arrival of comets on the sky is a wonder to astronomers. But it is also believed by others as a bad omen attached to the leader of a country where it is seen. I wonder about this belief like this: a comet is seen all over the world in the skies of all the countries; then is it a sign of death for all those leaders?

Comets are heavenly bodies that revolve (orbit) around our sun like all our planets. So, they are seen periodically near our earth. They do not move with speed as the Shooting stars, Artificialsatellites or Spacestations. They are seen on the evening or the morning sky when sun sets down or rises up. They slowly move each day farther and go far away to be seen like an airplane that disappears at a distance on the sky.

Comets show a tail when they are near the sun. They consist of ice, dust and particles of rock. As these they go far away from the earth they leave behind debris that are attracted by earth’s atmosphere. When all these fall down on the earth, they produce or present the show of Meteor shower.

Wednesday, February 18, 2009

Here in Tamil Nadu, South India, it is a tradition and a weekly routine to take an oil bath – anointing the whole body with Til oil (Sesame oil), then smearing a paste of an herbal pod powder and getting a shower. This keeps the skin and the hairs both of the body and scalp healthy, and ushers in a good night’s sleep! This paste’s main ingredient is that of the pods of the Shikkai Tree (Acacia concinna, ‘Shiyakaai ’ in Tamil). The whole pod itself has a good oil removing power due to its Saponins content. That is why it is available here in mini-sachets also, as a Natural herbal shampoo! Moreover its paste is harmless and it is equal to corrosive acids like Acetic acid in keeping floor tiles free from both oil and (mineral) salty deposits.

It is a wonder treeproviding us freshness of both the body and mind through its pods!

Thursday, February 12, 2009

You can feel your pulse yourself! Try placing the tips of central three fingers of right hand on the outer edge of the left wrist with the middle finger on the end of wrist crease. Now press down gently these fingers on the skin. In any one of these fingers you will feel the pushing up and going down (pulse) of your (radial) pulse the most!

This pulsehas a normal and average rate of seventy two per minute. It varies with your mood and physical activity. If you are angry or doing exercises it increases; if you are calm and inactive it decreases itself to near normal rate.

Pulse’s nature is the indicator of health of our blood pumping system which resembles wonderfully with water pumping system!

Thursday, February 5, 2009

It is everybody’s observation that symmetry in every aspect gives the object its attraction, pleasing its observer. All the beautiful objects in Nature that appeals to us are thought to have certain neat arrangement of their structures in common. They are said to be in a symmetrical proportion called as the Golden ratio. This ratio in all of them works out to a common number, (approximately), the Golden number!

It is: 1.61803398…..! This number is unique in that its product with its own number is equal to its addition to the number, one!

The Golden ratio numbers are given as a series of numbers as follows:

0,1,1,2,3,5,8,13,21,34,55, …………… and so on!

You see that there is one common nature in this series. The sum of any two successive numbers gives you the next number of them! This is called Fibonacci series of numbers.

Beauty in Art, Architecture, Anatomy and many others are explained by these Golden ratio numbers. In beautiful flowers the number of their petals is in Golden ratio numbers! In our body, for example, the hand’s lengths between finger tips to the elbow and that between the wrist and the elbow are also in Golden ratio numbers! You can try it yourself. Even our DNA molecule has these numbers: its width is about 21 angstrom and the height 34 angstrom!

This wonderful Golden ratio numbers have been discovered by Leonardoda vinci (Fibonacci)!

For those interested in finding out the nature of these numbers:

GoldenNumber!

1.61803398..

Its product with itself  1.61803398 x 1.61803398 = 2.61803398

Its addition to number, 1  1+1.61803398 = 2.61803398

See that both the resulting numbers are the same!

Golden ratio!

It is: 1:1.61803398…

Two numbers are said to be in Golden ratio when the ratio between their sum and their greater number is equal to the ratio between the greater one and the lesser one.

1+1.61803398 = 2.61803398  2.61803398 / 1.61803398 = 1.61803399

1.61803398 / 1 = 1.61803398

See that both the resulting numbers are the same! So, they are in Golden ratio.

It can also be explained with other successive Fibonacci series numbers. Try with them and verify yourself!

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